/**
 * 组件内部使用js
 */

var UUID = function UUID(len, radix) {
	var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split(
		''
	);
	var uuid = [],
		i;
	radix = radix || chars.length;

	if (len) {
		// Compact form
		for (i = 0; i < len; i++) {
			uuid[i] = chars[0 | (Math.random() * radix)];
		}
	} else {
		// rfc4122, version 4 form
		var r; // rfc4122 requires these characters

		uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-';
		uuid[14] = '4'; // Fill in random data.  At i==19 set the high bits of clock sequence as
		// per rfc4122, sec. 4.1.5

		for (i = 0; i < 36; i++) {
			if (!uuid[i]) {
				r = 0 | (Math.random() * 16);
				uuid[i] = chars[i === 19 ? (r & 0x3) | 0x8 : r];
			}
		}
	}

	return uuid.join('').toLocaleUpperCase();
};

export { UUID };
